html,
body {
    height: 100%;
    overflow: hidden;
}

body {
    background: #1E9FFF;
    position: relative;
}

.box-one {
    width: 350px;
    height: 250px;
    background-color: #fff;
    position: absolute;
    left: 50%;
    top: 45%;
    transform: translate(-50%, -50%);
}

.box-one h1 {
    text-align: center;
    color: #1E9FFF;
    font-weight: bold;
    margin-top: 20px;
}

.theone {
    padding: 20px;
}

.layui-form-item {
    position: relative;
}

.layui-icon {
    position: absolute;
    top: 10px;
    left: 8px;
}

.layui-input {
    padding: 0 25px;
}